"Love is funny or it's sad, Or it's quiet or it's mad, It's a good thing or it's bad, But beautiful." Sung here by Nancy Wilson, that's the opening quatrain from "But Beautiful." The song by Van Heusen and Burke sums up the quixotic nature of love, which is also reflected in these classic songs, interpreted by 16 jazz greats of yesterday and today. One of the smoothest and most lush versions of "Too Close for Comfort" on record is sung by Patti Austen; other highlights are Billie Holiday's rueful "Comes Love," June Christy's signature "Something Cool," Madeleine Peyroux's jaunty "Getting Some Fun Out of Life," Anita O'Day's pyrotechnic "Honeysuckle Rose," Kevin Mahogany's lush "Sophisticated Lady," and Chet Baker's pellucid "My Heart Stood Still."